Italianization

Short definition from Wiktionary

Noun

1. 1
   The conversion of a non-Italian culture to an Italian one.
2. 2
   The process of adapting lexical elements from a foreign language to the Italian linguistic system.

Proper noun

1. 1
   The forced cultural and ethnic assimilation of minorities in the Kingdom of Italy, with particular reference to the Fascist government (1922–1943).